package net.shenru.ui.zxing;

import java.io.IOException;
import java.text.DateFormat;
import java.util.Collection;
import java.util.Date;
import java.util.EnumSet;
import java.util.Map;
import java.util.Set;

import net.shenru.R;
import net.shenru.os.utlis.SrToast;
import net.shenru.zxing.BeepManager;
import net.shenru.zxing.CaptureActivityHandler;
import net.shenru.zxing.FinishListener;
import net.shenru.zxing.InactivityTimer;
import net.shenru.zxing.IntentSource;
import net.shenru.zxing.Intents;
import net.shenru.zxing.PreferencesActivity;
import net.shenru.zxing.ViewfinderView;
import net.shenru.zxing.camera.CameraManager;
import net.shenru.zxing.result.ResultButtonListener;
import net.shenru.zxing.result.ResultHandler;
import net.shenru.zxing.result.ResultHandlerFactory;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.Rect;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.preference.PreferenceManager;
import android.util.Log;
import android.util.TypedValue;
import android.view.KeyEvent;
import android.view.SurfaceHolder;
import android.view.SurfaceHolder.Callback;
import android.view.SurfaceView;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.view.WindowManager;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;

import com.google.zxing.BarcodeFormat;
import com.google.zxing.Result;
import com.google.zxing.ResultMetadataType;
import com.google.zxing.ResultPoint;

/**
 * 扫描页面
 */
public class CaptureActivity extends ZxingBaseActivity implements Callback {

	//Task  在程序中扫描界面只有一个应该使用Task
	private static final String TAG = CaptureActivity.class.getSimpleName();

	// private static final int SHARE_ID = Menu.FIRST;
	// private static final int HISTORY_ID = Menu.FIRST + 1;
	// private static final int SETTINGS_ID = Menu.FIRST + 2;
	// private static final int HELP_ID = Menu.FIRST + 3;
	// private static final int ABOUT_ID = Menu.FIRST + 4;

	private static final long DEFAULT_INTENT_RESULT_DURATION_MS = 1500L;
	//批量扫描重启摄像头时间
	private static final long BULK_MODE_SCAN_DELAY_MS = 1000L;
//
//	private static final String PACKAGE_NAME = "com.google.zxing.client.android";
//	private static final String PRODUCT_SEARCH_URL_PREFIX = "http://www.google";
//	private static final String PRODUCT_SEARCH_URL_SUFFIX = "/m/products/scan";
//	private static final String[] ZXING_URLS = { "http://zxing.appspot.com/scan", "zxing://scan/" };
//	private static final String RETURN_CODE_PLACEHOLDER = "{CODE}";
//	private static final String RETURN_URL_PARAM = "ret";

//	public static final int HISTORY_REQUEST_CODE = 0x0000bacc;

	private static final Set<ResultMetadataType> DISPLAYABLE_METADATA_TYPES = EnumSet.of(
			ResultMetadataType.ISSUE_NUMBER, ResultMetadataType.SUGGESTED_PRICE,
			ResultMetadataType.ERROR_CORRECTION_LEVEL, ResultMetadataType.POSSIBLE_COUNTRY);

	private CameraManager cameraManager;
	private CaptureActivityHandler handler;
	private Result savedResultToShow;
	private ViewfinderView viewfinderView;
	private TextView statusView;
	private View resultView;
	private Result lastResult;
	private boolean hasSurface;
	//是否拷贝到剪切板
//	private boolean copyToClipboard;
	private IntentSource source;
	private String sourceUrl;
	private String returnUrlTemplate;
	private Collection<BarcodeFormat> decodeFormats;
	private String characterSet;
	private String versionName;
//	private HistoryManager historyManager;
	private InactivityTimer inactivityTimer;
	private BeepManager beepManager;

	private final DialogInterface.OnClickListener aboutListener = new DialogInterface.OnClickListener() {
		@Override
		public void onClick(DialogInterface dialogInterface, int i) {
			Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(getString(R.string.zxing_url)));
			intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
			startActivity(intent);
		}
	};

	public ViewfinderView getViewfinderView() {
		return viewfinderView;
	}

	public Handler getHandler() {
		return handler;
	}

	public CameraManager getCameraManager() {
		return cameraManager;
	}

	@Override
	public void onCreate(Bundle icicle) {
		super.onCreate(icicle);

		Window window = getWindow();
		window.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
		setContentView(R.layout.zxing_capture);

		hasSurface = false;
//		historyManager = new HistoryManager(this);
//		historyManager.trimHistory();
		inactivityTimer = new InactivityTimer(this);
		//初始化
		beepManager = new BeepManager(this);

//		PreferenceManager.setDefaultValues(this, R.xml.preferences, false);
//
//		showHelpOnFirstLaunch();
	}

	@Override
	protected void onResume() {
		super.onResume();

		//可以就行优化，把寻找控件优化
		
		
		// CameraManager must be initialized here, not in onCreate(). This is
		// necessary because we don't
		// want to open the camera driver and measure the screen size if we're
		// going to show the help on
		// first launch. That led to bugs where the scanning rectangle was the
		// wrong size and partially
		// off screen.
		cameraManager = new CameraManager(getApplication());

		viewfinderView = (ViewfinderView) findViewById(R.id.viewfinder_view);
		viewfinderView.setCameraManager(cameraManager);

		resultView = findViewById(R.id.result_view);
		statusView = (TextView) findViewById(R.id.status_view);

		handler = null;
		lastResult = null;

		resetStatusView();

		SurfaceView surfaceView = (SurfaceView) findViewById(R.id.preview_view);
		SurfaceHolder surfaceHolder = surfaceView.getHolder();
		if (hasSurface) {
			// The activity was paused but not stopped, so the surface still
			// exists. Therefore
			// surfaceCreated() won't be called, so init the camera here.
			initCamera(surfaceHolder);
		} else {
			// Install the callback and wait for surfaceCreated() to init the
			// camera.
			surfaceHolder.addCallback(this);
			surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
		}

		beepManager.updatePrefs();

		inactivityTimer.onResume();

//		Intent intent = getIntent();

//		SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
//		copyToClipboard = prefs.getBoolean(PreferencesActivity.KEY_COPY_TO_CLIPBOARD, true)
//				&& (intent == null || intent.getBooleanExtra(Intents.Scan.SAVE_HISTORY, true));

		source = IntentSource.NONE;
//		decodeFormats = null;
//		characterSet = null;

//		if (intent != null) {
//
//			String action = intent.getAction();
//			String dataString = intent.getDataString();
//
//			if (Intents.Scan.ACTION.equals(action)) {
//
//				// Scan the formats the intent requested, and return the result
//				// to the calling activity.
//				source = IntentSource.NATIVE_APP_INTENT;
//				decodeFormats = DecodeFormatManager.parseDecodeFormats(intent);
//
//				if (intent.hasExtra(Intents.Scan.WIDTH) && intent.hasExtra(Intents.Scan.HEIGHT)) {
//					int width = intent.getIntExtra(Intents.Scan.WIDTH, 0);
//					int height = intent.getIntExtra(Intents.Scan.HEIGHT, 0);
//					if (width > 0 && height > 0) {
//						cameraManager.setManualFramingRect(width, height);
//					}
//				}
//
//				String customPromptMessage = intent.getStringExtra(Intents.Scan.PROMPT_MESSAGE);
//				if (customPromptMessage != null) {
//					statusView.setText(customPromptMessage);
//				}
//
//			} else if (dataString != null && dataString.contains(PRODUCT_SEARCH_URL_PREFIX)
//					&& dataString.contains(PRODUCT_SEARCH_URL_SUFFIX)) {
//
//				// Scan only products and send the result to mobile Product
//				// Search.
//				source = IntentSource.PRODUCT_SEARCH_LINK;
//				sourceUrl = dataString;
//				decodeFormats = DecodeFormatManager.PRODUCT_FORMATS;
//
//			} else if (isZXingURL(dataString)) {
//
//				// Scan formats requested in query string (all formats if none
//				// specified).
//				// If a return URL is specified, send the results there.
//				// Otherwise, handle it ourselves.
//				source = IntentSource.ZXING_LINK;
//				sourceUrl = dataString;
//				Uri inputUri = Uri.parse(sourceUrl);
//				returnUrlTemplate = inputUri.getQueryParameter(RETURN_URL_PARAM);
//				decodeFormats = DecodeFormatManager.parseDecodeFormats(inputUri);
//
//			}
//
//			characterSet = intent.getStringExtra(Intents.Scan.CHARACTER_SET);
//
//		}
	}

//	private static boolean isZXingURL(String dataString) {
//		if (dataString == null) {
//			return false;
//		}
//		for (String url : ZXING_URLS) {
//			if (dataString.startsWith(url)) {
//				return true;
//			}
//		}
//		return false;
//	}

	@Override
	protected void onPause() {
		if (handler != null) {
			handler.quitSynchronously();
			handler = null;
		}
		inactivityTimer.onPause();
		cameraManager.closeDriver();
		if (!hasSurface) {
			SurfaceView surfaceView = (SurfaceView) findViewById(R.id.preview_view);
			SurfaceHolder surfaceHolder = surfaceView.getHolder();
			surfaceHolder.removeCallback(this);
		}
		super.onPause();
	}

	@Override
	protected void onDestroy() {
		inactivityTimer.shutdown();
		super.onDestroy();
	}

	@Override
	public boolean onKeyDown(int keyCode, KeyEvent event) {
		if (keyCode == KeyEvent.KEYCODE_BACK) {
			if (source == IntentSource.NATIVE_APP_INTENT) {
				//如果是其他应用开启的扫描界面当按返回键结束
				setResult(RESULT_CANCELED);
				finish();
				return true;
			} else if ((source == IntentSource.NONE || source == IntentSource.ZXING_LINK) && lastResult != null) {
				//这里意思是：如果来源为自己开启的并且结果不为空
				//如果扫描到结果展现个用户，当用户点击返回按钮重新开始扫描
				restartPreviewAfterDelay(0L);
				return true;
			}
		} else if (keyCode == KeyEvent.KEYCODE_FOCUS || keyCode == KeyEvent.KEYCODE_CAMERA) {
			// Handle these events so they don't launch the Camera app
			return true;
		}
		return super.onKeyDown(keyCode, event);
	}

//	@Override
//	public boolean onCreateOptionsMenu(Menu menu) {
//		super.onCreateOptionsMenu(menu);
//		menu.add(Menu.NONE, SHARE_ID, Menu.NONE, R.string.menu_share).setIcon(android.R.drawable.ic_menu_share);
//		menu.add(Menu.NONE, HISTORY_ID, Menu.NONE, R.string.menu_history).setIcon(
//				android.R.drawable.ic_menu_recent_history);
//		menu.add(Menu.NONE, SETTINGS_ID, Menu.NONE, R.string.menu_settings).setIcon(
//				android.R.drawable.ic_menu_preferences);
//		menu.add(Menu.NONE, HELP_ID, Menu.NONE, R.string.menu_help).setIcon(android.R.drawable.ic_menu_help);
//		menu.add(Menu.NONE, ABOUT_ID, Menu.NONE, R.string.menu_about).setIcon(android.R.drawable.ic_menu_info_details);
//		return true;
//	}
//
//	// Don't display the share menu item if the result overlay is showing.
//	@Override
//	public boolean onPrepareOptionsMenu(Menu menu) {
//		super.onPrepareOptionsMenu(menu);
//		menu.findItem(SHARE_ID).setVisible(lastResult == null);
//		return true;
//	}
//
//	@Override
//	public boolean onOptionsItemSelected(MenuItem item) {
//		Intent intent = new Intent(Intent.ACTION_VIEW);
//		intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
//		switch (item.getItemId()) {
//		case SHARE_ID:
//			intent.setClassName(this, ShareActivity.class.getName());
//			startActivity(intent);
//			break;
//		case HISTORY_ID:
//			intent = new Intent(Intent.ACTION_VIEW);
//			intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
//			intent.setClassName(this, HistoryActivity.class.getName());
//			startActivityForResult(intent, HISTORY_REQUEST_CODE);
//			break;
//		case SETTINGS_ID:
//			intent.setClassName(this, PreferencesActivity.class.getName());
//			startActivity(intent);
//			break;
//		case HELP_ID:
//			intent.setClassName(this, HelpActivity.class.getName());
//			startActivity(intent);
//			break;
//		case ABOUT_ID:
//			AlertDialog.Builder builder = new AlertDialog.Builder(this);
//			builder.setTitle(getString(R.string.title_about) + versionName);
//			builder.setMessage(getString(R.string.msg_about) + "\n\n" + getString(R.string.zxing_url));
//			builder.setIcon(R.drawable.launcher_icon);
//			builder.setPositiveButton(R.string.button_open_browser, aboutListener);
//			builder.setNegativeButton(R.string.button_cancel, null);
//			builder.show();
//			break;
//		default:
//			return super.onOptionsItemSelected(item);
//		}
//		return true;
//	}

//	@Override
//	public void onActivityResult(int requestCode, int resultCode, Intent intent) {
//		if (resultCode == RESULT_OK) {
//			if (requestCode == HISTORY_REQUEST_CODE) {
//				int itemNumber = intent.getIntExtra(Intents.History.ITEM_NUMBER, -1);
//				if (itemNumber >= 0) {
//					HistoryItem historyItem = historyManager.buildHistoryItem(itemNumber);
//					decodeOrStoreSavedBitmap(null, historyItem.getResult());
//				}
//			}
//		}
//	}

	private void decodeOrStoreSavedBitmap(Bitmap bitmap, Result result) {
		// Bitmap isn't used yet -- will be used soon
		if (handler == null) {
			savedResultToShow = result;
		} else {
			if (result != null) {
				savedResultToShow = result;
			}
			if (savedResultToShow != null) {
				Message message = Message.obtain(handler, R.id.decode_succeeded, savedResultToShow);
				handler.sendMessage(message);
			}
			savedResultToShow = null;
		}
	}

	@Override
	public void surfaceCreated(SurfaceHolder holder) {
		if (holder == null) {
			Log.e(TAG, "*** WARNING *** surfaceCreated() gave us a null surface!");
		}
		if (!hasSurface) {
			hasSurface = true;
			initCamera(holder);
		}
	}

	@Override
	public void surfaceDestroyed(SurfaceHolder holder) {
		hasSurface = false;
	}

	@Override
	public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {

	}

	/**
	 * A valid barcode has been found, so give an indication of success and show
	 * the results.
	 * 
	 * @param rawResult
	 *            The contents of the barcode.
	 * @param barcode
	 *            A greyscale bitmap of the camera data which was decoded.
	 */
	public void handleDecode(Result rawResult, Bitmap barcode) {
		inactivityTimer.onActivity();
		lastResult = rawResult;
		//这里需要修改为自己封装的类
		if(rawResult != null){
			beepManager.playBeepSoundAndVibrate();
			SrToast.show(getApplicationContext(), rawResult.getText());
			return;
		}
		
		
		
		
		
		ResultHandler resultHandler = ResultHandlerFactory.makeResultHandler(this, rawResult);
//		historyManager.addHistoryItem(rawResult, resultHandler);

		if (barcode == null) {
			// This is from history -- no saved barcode
			handleDecodeInternally(rawResult, resultHandler, null);
		} else {
			beepManager.playBeepSoundAndVibrate();
			drawResultPoints(barcode, rawResult);
			switch (source) {
			case NATIVE_APP_INTENT:
			case PRODUCT_SEARCH_LINK:
				handleDecodeExternally(rawResult, resultHandler, barcode);
				break;
			case ZXING_LINK:
				if (returnUrlTemplate == null) {
					handleDecodeInternally(rawResult, resultHandler, barcode);
				} else {
					handleDecodeExternally(rawResult, resultHandler, barcode);
				}
				break;
			case NONE:
				SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
				if (prefs.getBoolean(PreferencesActivity.KEY_BULK_MODE, false)) {
					//这里如果是批量扫描模式
					Toast.makeText(this, R.string.msg_bulk_mode_scanned, Toast.LENGTH_SHORT).show();
					// Wait a moment or else it will scan the same barcode
					// continuously about 3 times
					restartPreviewAfterDelay(BULK_MODE_SCAN_DELAY_MS);
				} else {
					handleDecodeInternally(rawResult, resultHandler, barcode);
				}
				break;
			}
		}
	}

	/**
	 * Superimpose a line for 1D or dots for 2D to highlight the key features of
	 * the barcode.
	 * 
	 * @param barcode
	 *            A bitmap of the captured image.
	 * @param rawResult
	 *            The decoded results which contains the points to draw.
	 */
	private void drawResultPoints(Bitmap barcode, Result rawResult) {
		ResultPoint[] points = rawResult.getResultPoints();
		if (points != null && points.length > 0) {
			Canvas canvas = new Canvas(barcode);
			Paint paint = new Paint();
			paint.setColor(getResources().getColor(R.color.result_image_border));
			paint.setStrokeWidth(3.0f);
			paint.setStyle(Paint.Style.STROKE);
			Rect border = new Rect(2, 2, barcode.getWidth() - 2, barcode.getHeight() - 2);
			canvas.drawRect(border, paint);

			paint.setColor(getResources().getColor(R.color.result_points));
			if (points.length == 2) {
				paint.setStrokeWidth(4.0f);
				drawLine(canvas, paint, points[0], points[1]);
			} else if (points.length == 4
					&& (rawResult.getBarcodeFormat() == BarcodeFormat.UPC_A || rawResult.getBarcodeFormat() == BarcodeFormat.EAN_13)) {
				// Hacky special case -- draw two lines, for the barcode and
				// metadata
				drawLine(canvas, paint, points[0], points[1]);
				drawLine(canvas, paint, points[2], points[3]);
			} else {
				paint.setStrokeWidth(10.0f);
				for (ResultPoint point : points) {
					canvas.drawPoint(point.getX(), point.getY(), paint);
				}
			}
		}
	}

	private static void drawLine(Canvas canvas, Paint paint, ResultPoint a, ResultPoint b) {
		canvas.drawLine(a.getX(), a.getY(), b.getX(), b.getY(), paint);
	}

	// Put up our own UI for how to handle the decoded contents.
	private void handleDecodeInternally(Result rawResult, ResultHandler resultHandler, Bitmap barcode) {
		statusView.setVisibility(View.GONE);
		viewfinderView.setVisibility(View.GONE);
		resultView.setVisibility(View.VISIBLE);

		ImageView barcodeImageView = (ImageView) findViewById(R.id.barcode_image_view);
		if (barcode == null) {
			barcodeImageView.setImageBitmap(BitmapFactory.decodeResource(getResources(), R.drawable.ic_launcher));
		} else {
			barcodeImageView.setImageBitmap(barcode);
		}

		//二维码格式
		TextView formatTextView = (TextView) findViewById(R.id.format_text_view);
		formatTextView.setText(rawResult.getBarcodeFormat().toString());

		//二维码类型
		TextView typeTextView = (TextView) findViewById(R.id.type_text_view);
		typeTextView.setText(resultHandler.getType().toString());

		//解析二维码时间
		DateFormat formatter = DateFormat.getDateTimeInstance(DateFormat.SHORT, DateFormat.SHORT);
		String formattedTime = formatter.format(new Date(rawResult.getTimestamp()));
		TextView timeTextView = (TextView) findViewById(R.id.time_text_view);
		timeTextView.setText(formattedTime);

		//这里是对zxing结果进行了封装处理
		TextView metaTextView = (TextView) findViewById(R.id.meta_text_view);
		View metaTextViewLabel = findViewById(R.id.meta_text_view_label);
		metaTextView.setVisibility(View.GONE);
		metaTextViewLabel.setVisibility(View.GONE);
		Map<ResultMetadataType, Object> metadata = rawResult.getResultMetadata();
		if (metadata != null) {
			StringBuilder metadataText = new StringBuilder(20);
			//暂时理解为附加内容
			for (Map.Entry<ResultMetadataType, Object> entry : metadata.entrySet()) {
				if (DISPLAYABLE_METADATA_TYPES.contains(entry.getKey())) {
					metadataText.append(entry.getValue()).append('\n');
				}
			}
			if (metadataText.length() > 0) {
				metadataText.setLength(metadataText.length() - 1);
				metaTextView.setText(metadataText);
				metaTextView.setVisibility(View.VISIBLE);
				metaTextViewLabel.setVisibility(View.VISIBLE);
			}
		}

		TextView contentsTextView = (TextView) findViewById(R.id.contents_text_view);
		CharSequence displayContents = resultHandler.getDisplayContents();
		contentsTextView.setText(displayContents);
		// Crudely scale betweeen 22 and 32 -- bigger font for shorter text
		int scaledSize = Math.max(22, 32 - displayContents.length() / 4);
		contentsTextView.setTextSize(TypedValue.COMPLEX_UNIT_SP, scaledSize);

		TextView supplementTextView = (TextView) findViewById(R.id.contents_supplement_text_view);
		supplementTextView.setText("");
		supplementTextView.setOnClickListener(null);
//		if (PreferenceManager.getDefaultSharedPreferences(this).getBoolean(PreferencesActivity.KEY_SUPPLEMENTAL, true)) {
//			//如果是批量扫描则添加到历史扫描结果了，这里的主要使用到了。线程保存机制
//			SupplementalInfoRetriever.maybeInvokeRetrieval(supplementTextView, resultHandler.getResult(), handler,
//					historyManager, this);
//		}

		//这里类似芝麻客 客户端扫描出来的不同空间一样
		int buttonCount = resultHandler.getButtonCount();
		ViewGroup buttonView = (ViewGroup) findViewById(R.id.result_button_view);
		buttonView.requestFocus();
		for (int x = 0; x < ResultHandler.MAX_BUTTON_COUNT; x++) {
			TextView button = (TextView) buttonView.getChildAt(x);
			if (x < buttonCount) {
				button.setVisibility(View.VISIBLE);
				button.setText(resultHandler.getButtonText(x));
				button.setOnClickListener(new ResultButtonListener(resultHandler, x));
			} else {
				button.setVisibility(View.GONE);
			}
		}

//		if (copyToClipboard && !resultHandler.areContentsSecure()) {
//			ClipboardManager clipboard = (ClipboardManager) getSystemService(CLIPBOARD_SERVICE);
//			clipboard.setText(displayContents);
//		}
	}

	// Briefly show the contents of the barcode, then handle the result outside
	// Barcode Scanner.
	private void handleDecodeExternally(Result rawResult, ResultHandler resultHandler, Bitmap barcode) {
//		viewfinderView.drawResultBitmap(barcode);
//
//		// Since this message will only be shown for a second, just tell the
//		// user what kind of
//		// barcode was found (e.g. contact info) rather than the full contents,
//		// which they won't
//		// have time to read.
//		statusView.setText(getString(resultHandler.getDisplayTitle()));
//
////		if (copyToClipboard && !resultHandler.areContentsSecure()) {
////			ClipboardManager clipboard = (ClipboardManager) getSystemService(CLIPBOARD_SERVICE);
////			clipboard.setText(resultHandler.getDisplayContents());
//		// }
//
//		if (source == IntentSource.NATIVE_APP_INTENT) {
//
//			// Hand back whatever action they requested - this can be changed to
//			// Intents.Scan.ACTION when
//			// the deprecated intent is retired.
//			Intent intent = new Intent(getIntent().getAction());
//			intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
//			intent.putExtra(Intents.Scan.RESULT, rawResult.toString());
//			intent.putExtra(Intents.Scan.RESULT_FORMAT, rawResult.getBarcodeFormat().toString());
//			byte[] rawBytes = rawResult.getRawBytes();
//			if (rawBytes != null && rawBytes.length > 0) {
//				intent.putExtra(Intents.Scan.RESULT_BYTES, rawBytes);
//			}
//			Map<ResultMetadataType, ?> metadata = rawResult.getResultMetadata();
//			if (metadata != null) {
//				Integer orientation = (Integer) metadata.get(ResultMetadataType.ORIENTATION);
//				if (orientation != null) {
//					intent.putExtra(Intents.Scan.RESULT_ORIENTATION, orientation.intValue());
//				}
//				String ecLevel = (String) metadata.get(ResultMetadataType.ERROR_CORRECTION_LEVEL);
//				if (ecLevel != null) {
//					intent.putExtra(Intents.Scan.RESULT_ERROR_CORRECTION_LEVEL, ecLevel);
//				}
//				Iterable<byte[]> byteSegments = (Iterable<byte[]>) metadata.get(ResultMetadataType.BYTE_SEGMENTS);
//				if (byteSegments != null) {
//					int i = 0;
//					for (byte[] byteSegment : byteSegments) {
//						intent.putExtra(Intents.Scan.RESULT_BYTE_SEGMENTS_PREFIX + i, byteSegment);
//						i++;
//					}
//				}
//			}
//			sendReplyMessage(R.id.return_scan_result, intent);
//
//		} else if (source == IntentSource.PRODUCT_SEARCH_LINK) {
//
//			// Reformulate the URL which triggered us into a query, so that the
//			// request goes to the same
//			// TLD as the scan URL.
//			int end = sourceUrl.lastIndexOf("/scan");
//			String replyURL = sourceUrl.substring(0, end) + "?q=" + resultHandler.getDisplayContents()
//					+ "&source=zxing";
//			sendReplyMessage(R.id.launch_product_query, replyURL);
//
//		} else if (source == IntentSource.ZXING_LINK) {
//
//			// Replace each occurrence of RETURN_CODE_PLACEHOLDER in the
//			// returnUrlTemplate
//			// with the scanned code. This allows both queries and REST-style
//			// URLs to work.
//			if (returnUrlTemplate != null) {
//				String codeReplacement = String.valueOf(resultHandler.getDisplayContents());
//				try {
//					codeReplacement = URLEncoder.encode(codeReplacement, "UTF-8");
//				} catch (UnsupportedEncodingException e) {
//					// can't happen; UTF-8 is always supported. Continue, I
//					// guess, without encoding
//				}
//				String replyURL = returnUrlTemplate.replace(RETURN_CODE_PLACEHOLDER, codeReplacement);
//				sendReplyMessage(R.id.launch_product_query, replyURL);
//			}
//
//		}
	}

	private void sendReplyMessage(int id, Object arg) {
		Message message = Message.obtain(handler, id, arg);
		long resultDurationMS = getIntent().getLongExtra(Intents.Scan.RESULT_DISPLAY_DURATION_MS,
				DEFAULT_INTENT_RESULT_DURATION_MS);
		if (resultDurationMS > 0L) {
			handler.sendMessageDelayed(message, resultDurationMS);
		} else {
			handler.sendMessage(message);
		}
	}

	/**
	 * We want the help screen to be shown automatically the first time a new
	 * version of the app is run. The easiest way to do this is to check
	 * android:versionCode from the manifest, and compare it to a value stored
	 * as a preference.
	 */
//	private boolean showHelpOnFirstLaunch() {
//		try {
//			PackageInfo info = getPackageManager().getPackageInfo(PACKAGE_NAME, 0);
//			int currentVersion = info.versionCode;
//			// Since we're paying to talk to the PackageManager anyway, it makes
//			// sense to cache the app
//			// version name here for display in the about box later.
//			this.versionName = info.versionName;
//			SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
//			int lastVersion = prefs.getInt(PreferencesActivity.KEY_HELP_VERSION_SHOWN, 0);
//			if (currentVersion > lastVersion) {
//				prefs.edit().putInt(PreferencesActivity.KEY_HELP_VERSION_SHOWN, currentVersion).commit();
//				Intent intent = new Intent(this, HelpActivity.class);
//				intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
//				// Show the default page on a clean install, and the what's new
//				// page on an upgrade.
//				String page = lastVersion == 0 ? HelpActivity.DEFAULT_PAGE : HelpActivity.WHATS_NEW_PAGE;
//				intent.putExtra(HelpActivity.REQUESTED_PAGE_KEY, page);
//				startActivity(intent);
//				return true;
//			}
//		} catch (PackageManager.NameNotFoundException e) {
//			Log.w(TAG, e);
//		}
//		return false;
//	}

	private void initCamera(SurfaceHolder surfaceHolder) {
		try {
			cameraManager.openDriver(surfaceHolder);
			// Creating the handler starts the preview, which can also throw a
			// RuntimeException.
			if (handler == null) {
				handler = new CaptureActivityHandler(this, decodeFormats, characterSet, cameraManager);
			}
			decodeOrStoreSavedBitmap(null, null);
		} catch (IOException ioe) {
			Log.w(TAG, ioe);
			displayFrameworkBugMessageAndExit();
		} catch (RuntimeException e) {
			// Barcode Scanner has seen crashes in the wild of this variety:
			// java.?lang.?RuntimeException: Fail to connect to camera service
			Log.w(TAG, "Unexpected error initializing camera", e);
			displayFrameworkBugMessageAndExit();
		}
	}

	private void displayFrameworkBugMessageAndExit() {
		AlertDialog.Builder builder = new AlertDialog.Builder(this);
		builder.setTitle(getString(R.string.app_name));
		builder.setMessage(getString(R.string.msg_camera_framework_bug));
		builder.setPositiveButton(R.string.button_ok, new FinishListener(this));
		builder.setOnCancelListener(new FinishListener(this));
		builder.show();
	}

	public void restartPreviewAfterDelay(long delayMS) {
		if (handler != null) {
			handler.sendEmptyMessageDelayed(R.id.restart_preview, delayMS);
		}
		resetStatusView();
	}

	private void resetStatusView() {
		resultView.setVisibility(View.GONE);
		statusView.setText(R.string.msg_default_status);
		statusView.setVisibility(View.VISIBLE);
		viewfinderView.setVisibility(View.VISIBLE);
		lastResult = null;
	}

	public void drawViewfinder() {
		viewfinderView.drawViewfinder();
	}
}
